Play Magicka for free on Steam this weekend

'Tis a grand weekend for indie gaming on Steam. In addition to the Super Meat Boy Pack , bonkers co-op RPG Magicka is free until 9pm on Sunday, and, yes, developers Arrowhead Game Studios have fixed most of the bugs . There's also a wizard's sleeve worth of offers on Steam, including Magicka itself for £1.99, a four-pack for you and three chums for £5.99, and the Magicka Collection - including all DLC - for £4.24. Magic!